Method of making bullets or other articles of manufacture.



' R. L. WILCOX & z. P. CANDEE.

METHOD 0? MAKING sums on OTHER ART 0; MANUFACTURE.

. APPLICATON FILED JAN. 25 I 1,149,485; Patented Aug, 10,1915.

Crimea arenas-n LESTER- wiL oX aNnsENAs ,r. CANDEEJ or wATEiiBUnY. CONNECTICUT. ASSIGNQRE; T0 rnE warnenner rAEnEL FOUNDRY AND IVlACI-IINE COMPANY, or WATERBURY, CONNECTICUT, a ConroR-ATIoN or CONNECTICUT. I

M N-Ion or Maxine BULLETS on OTHER ARTICLES CE-MANUFACTURE.

To all whom it m my concern Be it known that we. RICHARD Lns'rnu ll'incox and Zinxas P. CANDEE. citizens of the United States. residing at ll aterbury. in the county of New Haven and State of Connecticut. have invented certain new and useful Improvements in Methods of ll'laking Bullets or other. Articles of Manufacture, of which the following is a specification, reference being had therein to the accompanying drawings.

Our invention relates to a new and improved method of making bullets. or other articles of manufacture, and has for its object, among other things. the production of said bullets or such articles by a process that will produce them in QlltlllllltlQS at the minimum cost and of uniform size and shape with the opposite ends thereof concentric with each other.

a To these, and other ends, our invention consists in the improved method of making bullets. or other articles of n'nn'iufacture, substantially as hereinafter described and moreparticularly pointed out in the claims.

Referring to the drawings. in which like numerals of reference designate ike parts in the several figures, Figure l is a side elevation of a portion of a cylindrical rod, from which the articleis produced; Figs. 2, 3 and 4: illustate the successive operations: Fig. illustrates a completed bullet;

and Fig. 6 a sectional view at an inconr pleted bullet. taken upon line 6-6 of Fig. :2.

'l he bullet illustrated in the drawings has its greatest diameter between its ends and tapers toward each end. with an anmilar groove around the outsidejhereof. Our invention will. be described as applied to this general form of bullet. but we desire it understood. however. that it is not limited thereto. but may be utilized to produce other forms of bullets as well as articles of manufacture for other uses. ll'eretofore it has beendifiicult to make bullets of this char acter that will be accurate in form and shape, of uniform dimensions. and with the opposite ends thereof concentric with each ,other. The result has been. that these bullets have heretofore only been produced with fine'tools operated by skilled workmen at a, high cost and with a. small output. To

oiv'ercomc these, and other objections, we

have devised a method for producing these Specification of Letters Iatent. Application filed January 25, 1915? Serial No. 4,151

has been turned.

Patented Aug. 10, 1915.

bullets rapidly. at 1 very low cost, and with labor of ordinar skill operating tools that are more or less iircommon use. The bullets so manufactured are all of absolutely uniform size and shape. In brief. we produce by this 111ethod,a better bullet in very much larger relative quantities and at a much lower cost.

' In the practice of our invention we make the bullet from a wire rod taken from a coil of wire. and in Fig. 1 is illustrated a fragmentary portion of such wire rod.

The blank oi wire rod from which the bullet is made is first pinched at the point between (lies in a power press or similar device. This produces a blank substantially the same as that shown in Fig. 2. a fin being formed around the edge thereof at the point where the dies meet. This fin next removed by putting the blank into either a pointing machine or a trimming machine. whichever may be preferred. and the result is the blank shown in Fig. 8.

The blank may be cut oil from the wire rod either before or after the operations illustrated in Figs. and 3. but we prefer that this be done after the opeiation set forth in Fig. 2 has been completed, although this is not material. After the blank has been trimmed it is placed in aheading machine and the rear end thereof swaged. into its finished shape, which operation creates a fin 2 around the outside thereof. which is subsequently turned off and the bullet completed.

If it is desired to cut a groove in the bullet. such as illustrated by the numeral 3, in Fig. 5, it is formed at the same time that the fin 2 is removed.

Ordinarily these bullets have been made upon a screw machine, the pointed end bein first turned and the blank then cut off tram the rod after which the opposite end practically impossible to produce bullets of absolutely uniform diameter. and as the rear end of the bullet is sized. shaped and turned by holding the pointed end in a ;.clutch or similardevice, it is rarely ever concentric with the pointed end, and frequently the pointed end is marred and roughened by the clutch jaws and again,

the metal of which the bullets are frequently made is of such character that it cannot be lVith this process it is turned and leave a smooth surface. If the opposite ends of the bullet are not concentric witheach other, the bullet is useless, as its direction of flight and trajectory are not true, so much so as to prevent accurate firing.

With our process the bullet is formed without turning the outsidethereof and it can vhe properly sized and shaped irrespective pffthe character of the metal of which the bullet is made. By arrangement of the swaging mechanism, which does not rotate,

the fin 2 is always formed at the point where the groove is to be made, so that it ma be taken off while making the groove.

11 the drawings weihave illustrated a bullet with a slightly flattened nose, this being the usual requirement, but by our method the nose. can be .brought to a pin point if necessary, the shape of the pinching dies being slightly modified to produce this result.

Having described our invention, what we claim asnewfland desire to secure by Letters Patent, is

1. The -method of making an article of manufacture, comprising the pinching of the end of a .rod so as to point the same, removing the fin formed thereby, cutting a length from the rod from which the article is made, swaging the end of said article opposite the pointed end and removmg the fin formed by said swaging operation.

2. The method of making an article of manufacture having an annular groove around the outside thereof, comprising,.the pinching of the end of a rod so as to point the same, removing the fin formed thereby, cutting a length from the rod from which the article is made, swaging the end of said article opposite the pointed end so as to- 

